Binocular brightness sensitivity measurement method based on wearable display device, device and mobile terminal

ABSTRACT

A binocular brightness sensitivity measurement method based on a wearable display device includes: loading a first test image and a second test image which has a brightness different from that of the first test image respectively for two eyes of a user under test; adjusting the brightness of the first test image and/or the second test image until a predefined brightness sensitivity perception test condition is fulfilled; acquiring a brightness difference between the first test image and the second test image; and determining a binocular brightness sensitivity of the user under test based on the brightness difference.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No.PCT/CN2017/100414 with an international filing date of Sep. 4, 2017, theentire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present application relates to the technical field of virtualreality, and in particular, relates to a binocular brightnesssensitivity measurement method based on a wearable display device, adevice and a mobile terminal.

BACKGROUND

With the development of network technologies and machine vision andimage recognition technologies, more and more wearable display devicesare perceived by pleasant by users. For example, immersive virtualreality devices, augmented reality devices or even mobile terminals maybe equipped with a wearable bracket to provide a realistic virtualenvironment and interaction environment for the users.

Where the wearable display device provides the real virtual environmentand convenient interaction environment, more and more online interactionapplications gain development, for example, online diagnosis andtreatment or online meeting or the like.

Based on the human eye mechanism and human vision model, the brightnesssubjectively perceived by the human eyes is not absolutely the same asthe actual brightness, but a corresponding relationship is presenttherebetween. The human eyes may perceive an extremely wide brightnessrange, from thousands of a nit to millions of nits. In differentbrightness environments, the human eyes perceive different relativebrightness feelings for the same actual brightness. For example, withrespect to the same lamp, the relative brightness feelings for the humaneyes in the daytime are different from those in the nighttime. Inaddition, when the human eyes are quite adaptive to an environmentbrightness, the perceivable range may become smaller. Amblyopia,keratitis, ametropia, cataract, vitreous opacity, retinopathy andmaculopathy and the like ophthalmic diseases may cause differentperception capabilities against the brightness for two eyes of apatient, and thus affect normal life of the patient. How to accuratelymeasure the perception capabilities against the brightness of the leftand right eyes exerts a great significance for treatment of the aboveophthalmic diseases.

However, in the prior art, the binocular brightness sensitivity ismeasured by using very large equipment, users need to go to the hospitalfor diagnosis before taking measurements. Or, the brightness sensitivityis measured by using a polarization-type three-dimensional television.The above measurement equipment cannot be moved arbitrarily, and thereis a measurement error in the measurement results due to the positionerror and environmental interference of the measured user.

Therefore, the traditional binocular brightness sensitivity detectiontechnology needs to be improved.

SUMMARY

An embodiment of the present application provides a binocular brightnesssensitivity measurement method based on a wearable display device. Themethod includes: loading a first test image and a second test imagewhich has a brightness different from that of the first test imagerespectively for two eyes of a user under test; adjusting the brightnessof the first test image and/or the second test image until a predefinedbrightness sensitivity perception test condition is fulfilled; acquiringa brightness difference between the first test image and the second testimage; and determining a binocular brightness sensitivity of the userunder test based on the brightness difference.

Another embodiment of the present application provides a wearabledisplay device for measuring a binocular brightness sensitivity. Thewearable display device includes: a first three-dimensional display unitand a second three-dimensional display unit; wherein the wearabledisplay device further includes a brightness adjusting module, anacquiring module and a determining module; wherein with respect to twoeyes of a user under test, the first three-dimensional display unit isconfigured to load a first test image, and the second three-dimensionaldisplay unit is configured to load a second test image which has abrightness different from that of the first test image; the brightnessadjusting module is configured to adjust the brightness of the firsttest image and/or the second test image until a predefined brightnesssensitivity perception test condition is fulfilled; the acquiring moduleis configured to acquire a brightness difference between the first testimage and the second test image; and the determining module isconfigured to determine a binocular brightness sensitivity of the userunder test based on the brightness difference.

Still another embodiment of the present application provides a mobileterminal for measuring a binocular brightness sensitivity. The mobileterminal includes: a head-mounted bracket, a first three-dimensionaldisplay unit and a second three-dimensional display unit; wherein thewearable display device further includes a brightness adjusting module,an acquiring module and a determining module; wherein with respect totwo eyes of a user under test, the first three-dimensional display unitis configured to load a first test image, and the secondthree-dimensional display unit is configured to load a second test imagewhich has a brightness different from that of the first test image; thebrightness adjusting module is configured to adjust the brightness ofthe first test image and/or the second test image until a predefinedbrightness sensitivity perception test condition is fulfilled; theacquiring module is configured to acquire a brightness differencebetween the first test image and the second test image; and thedetermining module is configured to determine a binocular brightnesssensitivity of the user under test based on the brightness difference.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are illustrated by way of example, and not bylimitation, in the figures of the accompanying drawings, whereincomponents having the same reference numeral designations represent likecomponents throughout. The drawings are not to scale, unless otherwisedisclosed.

FIG. 1 is a frame diagram of a binocular brightness sensitivitymeasurement system based on a wearable display device according to anembodiment of the present application;

FIG. 2 is a module diagram of a wearable display device for measuring abinocular brightness sensitivity according to an embodiment of thepresent application;

FIG. 3 is a main flowchart of a binocular brightness sensitivitymeasurement method according to an embodiment of the presentapplication;

FIG. 4 is a flowchart of a binocular brightness sensitivity measurementmethod with respect to a static image according to an embodiment of thepresent application;

FIG. 5 is a flowchart of a binocular brightness sensitivity measurementmethod with respect to a dynamic image according to an embodiment of thepresent application;

FIG. 6 is a flowchart of a binocular brightness sensitivity measurementmethod with respect to a first static image and a second static imageincluded in the static image according to an embodiment of the presentapplication;

FIG. 7 is another flowchart of a binocular brightness sensitivitymeasurement method with respect to a first static image and a secondstatic image included in the static image according to an embodiment ofthe present application; and

FIG. 8 is a frame diagram of hardware practicing the binocularbrightness sensitivity measurement method according to an embodiment ofthe present application.

DETAILED DESCRIPTION

For clearer descriptions of the objectives, technical solutions, andadvantages of the present application, the present application isfurther described with reference to specific embodiments and attacheddrawings. It should be understood that the specific embodimentsdescribed herein are only intended to explain the present applicationinstead of limiting the present application.

Referring to FIG. 1, a binocular brightness sensitivity measurementsystem based on a wearable display device according to an embodiment ofthe present application includes at least one pair of wearable displaydevices, an interaction end and a cloud end 90. The wearable displaydevice may be a virtual reality (VR) device 10. The wearable displaydevice may also be an augmented reality (AR) device 30. The wearabledisplay device may also be a mobile terminal 20. Each of the aboveexemplified wearable display devices may be wirelessly connected to aninteraction end 40 and meanwhile connected to a cloud end 90. The cloudend 90 is constructed by networking of a plurality of cloud servers 91to 93.

The virtual reality device employs virtual reality and is a computersystem that is capable of creating and providing a virtualthree-dimensional world. The virtual reality device creates athree-dimensional virtual world reflecting in real time physical objectchanges and mutual interactions for users, and provides a vision forobserving a virtual world and provides there-dimensional interactiveoperations for the user by auxiliary sensing equipment such as helmetdisplays, data gloves and the like, such that the user may directlyparticipate in the interactive operations and explore changes andinteractions of a simulated object in a virtual spatial environment.Therefore, the virtual reality technology is recognized as a revolutionin the man-machine interface technology. The virtual reality technologyis a fruit of the computer technology, the sensing technology, theman-machine interface technology, the artificial intelligence technologyand the like high technologies. Verisimilitude and real-time interactionprovide solid supports for the system simulation technology, andmeanwhile provide immersion, interaction and imagination. An augmentedreality (AR) device further includes glasses by which the real world maybe observed. By means of the glasses and a projected virtualthree-dimensional image, the user may observe the real world whileseeing the virtual three-dimensional world.

The wearable display device in this technical solution mainly include: ahigh-performance operation and processing unit, a three-dimensionaldisplay unit and an interaction end 40. The three-dimensional displayunit includes two independent sets of sub display units, that is, afirst three-dimensional display unit and a second three-dimensionaldisplay unit. These two sets of sub display units display twoindependent test images to the left eye and the right eye of the user.The high-performance operation and processing unit is configured tocarry out real-time operation processing for a three-dimensional testimage, and the interaction end 40 is configured to process inputinformation of a user under test during the test process.

The detection fashions are categorized into static detection and dynamicdetection with respect to different test images. The static detectionrefers to allowing the left eye and the right eye of the user under testto respectively observe two static test images, wherein positions of theobjects in the one image are different from those of the objects in theother image, and display brightness of the two images is constantlyadjusted. When the left eye and the right eye of the user under testperceives that the two images have the same brightness, an actualbrightness difference between the two images may represent a binocularbrightness sensitivity of the user under test.

The dynamic detection refers to allowing the left eye and the right eyeof the user under test to observe dynamic test images. The brightness ofthe dynamic image is adjusted by the interaction end. When the objectsin the dynamic test images move in a plane parallel to the two eyes ofthe user under test, an actual brightness difference between the twoimages may represent a binocular brightness sensitivity of the userunder test.

The dynamic detection observes a principle based on the Pulfrich effect.The Pulfrich effect is an optimal illusion produced based on the factthat brain's perception on dark stimulations lags behind brain'sperception on bright stimulations. The Pulfrich phenomenon means thatwhen a pendulum is hung with a rope and is swung reciprocatively in aplane, if one eye is interrupted by a brown mirror, the trajectory ofthe pendulum observed by two eyes may transform from movement in a planeto three-dimensional movement with an elliptical trajectory. ThePulfrich effect is exerted because the eye observing a darker imagetransmits the image to the brain at a lower speed, and thus the brainconstructs a spatial depth that is not practically existent based onsuch a vision error. When a pendulum is swung from the left to the rightin a plane parallel to two eyes, if a neutral filter is arranged infront of the right eye, retinal illumination may be lowered and thusinformation transmission by the right eye is slowed. When a pendulum isswung from the left to the right, the position of the pendulum observedby the right eye is behind the position of the pendulum observed by theleft eye such that a crossed disparity is observed by the two eyes, andthus the pendulum is seemed to be closer. When a pendulum is swung fromthe right to the left, on the contrary, an uncrossed disparity isobserved, and thus the pendulum is seemed to be farther. As such, it isobserved that the pendulum is swung along a three-dimensional ellipticaltrajectory, which is caused by a time parallax. In clinics, the Pulfricheffect may be employed to measure a degree of transmission retardancedue to optic nerves. That is, a neural filter is arranged in front of anormal eye, and the density of the filter is gradually increased untilthe Pulfrich phenomenon disappears.

In the dynamic detection, if two eyes of the user under test havedifferent brightness sensitivities, the user under test may perceivethat the objects in the dynamic test images are not moving in a plane.During the process of adjusting the brightness of the dynamic testimages, when the user under test perceives that the objects in thedynamic test images move in the same plane, an actual brightnessdifference between the two dynamic test images may represent a binocularbrightness sensitivity of the user under test.

Embodiment 1

This embodiment relates to a wearable display device for measuring abinocular brightness sensitivity.

The wearable display device displays a test image in a firstthree-dimensional display unit and a second three-dimensional displayunit. A user under test wears the wearable helmet, observes the testimage in the first three-dimensional display unit and the secondthree-dimensional display unit with the left eye and the right eyerespectively, makes a brightness adjustment based on the observed testimage, and finally determines a brightness sensing capability differencebetween the left eye and the right eye, that is, a binocular brightnesssensitivity of the user under test.

Referring to FIG. 2, the wearable display device 60 includes a firstthree-dimensional display unit 61, a second three-dimensional displayunit 62, a brightness adjusting module 63, an acquiring module 64, adetermining module 65 and a connecting module 66.

With respect to two eyes of a user under test, the firstthree-dimensional display unit 61 loads a first test image, and thesecond three-dimensional display unit 62 loads a second test image whichhas a brightness different from that of the first test image.

The connecting module 66 is wirelessly connected to the interaction end40, and the interaction end 40 collects an interaction instruction fromthe user under test, and wirelessly sends the interaction instruction tothe connecting module 66.

The brightness adjusting module 63 adjusts the brightness of the firsttest image and/or the second test image based on the interactioninstruction until a predefined brightness sensitivity perception testcondition is fulfilled. In this case, the acquiring module 64 acquires abrightness difference between the first test image and the second testimage. The determining module 65 determines a binocular brightnesssensitivity of the user under test based on the brightness difference.

A specific test process is introduced as follows:

When the user under test wears the virtual reality device 10 or theaugmented reality device 30 or the like hardware device, a correspondingdevice software system selects or makes two images each having adifferent brightness, i.e., the first test image and the second testimage, and then displays the first test image and the second test imageon display windows of the first three-dimensional display unit and thesecond three-dimensional display unit respectively.

Corresponding to the dynamic detection and the static detection, in thestatic detection, the first test image and the second test image arestatic images, and in the dynamic detection, the first test image andthe second test image are dynamic images.

In an embodiment illustrating the static detection, the first test imageis a first static image, and the second test image is a second staticimage.

Referring to FIG. 6 and FIG. 7, an embodiment of the first static imageand the second static image is illustrated. The number of objects, andshapes and colors thereof in the first static image are not necessarilythe same as those in the second static image, which are not necessarilyin a vertical arrangement or a horizontal arrangement. FIG. 6 and FIG. 7illustrate several examples. In practice, implementation of the firststatic image and the second static image is not limited hereto. Imageelements in the first static image or the second static image have thesame brightness, whereas the brightness of the first static image isdifferent from that of the second static image. The number of objects,and positions and shapes of the objects in the first static image aredifferent from those in the second static image. All the objects in thefirst static image or in the second static image have the samebrightness, whereas the objects in the first static image have abrightness different from that of the objects in the second staticimage.

The brightness perception test condition is that the user perceives thatthe first static image and the second static image have the samebrightness.

When the interaction instruction is an interaction instruction forimproving the brightness of the first static image, the brightnessadjusting module 63 increases the brightness of the first static image,and decreases the brightness of the second static image. When theinteraction instruction is an interaction instruction for improving thebrightness of the second static image, the brightness adjusting module63 increases the brightness of the second static image, and decreasesthe brightness of the first static image.

When the user under test observes that the objects in the first staticimage and the second static image have the same brightness, the userunder test issues a stop instruction, and the determining module 65calculates a brightness difference between the first static image andthe second static image, locally stores data of the brightnessdifference, and determines a binocular brightness sensitivity of theuser under test based on the brightness difference. In otherembodiments, the determined binocular brightness sensitivity of the userunder test may also be transmitted to the cloud end 90 via acommunication module, or transmitted to a mobile terminal for browsing.

After the user under test wears the wearable display device, the userfirstly observes the first static image and the second static image ontwo display windows targeted by two eyes of the user, and then adjuststhe brightness of each individual display window based on an interactioninstruction input by the interaction end. When the user under testconsiders that the first static image and the second static image havethe same brightness, a brightness difference between the left displaywindow and the right display window is a brightness perceptioncapability difference between the left eye and the right eye. In thisway, based on a stored mapping table, a binocular brightness sensitivityvalue may be obtained.

In an embodiment illustrating the dynamic detection, the first testimage is a first dynamic image, and the second test image is a seconddynamic image.

Dynamic objects in the first dynamic image and the second dynamic imagereciprocate in a plane parallel to two eyes of the user directly infront of the user under test, and the dynamic objects in the firstdynamic image and the second dynamic image have the same positions andmovement trajectories. The dynamic object in the first dynamic image hasa brightness different from that of the dynamic object in the seconddynamic image.

In the embodiment illustrating the dynamic detection, the brightnessperception test condition is that the movement trajectories of thedynamic objects observed by the user are in the same plane.

When the interaction instruction from the interaction end 40 is aninteraction instruction for improving the brightness of the firstdynamic image, the brightness adjusting module 63 increases thebrightness of the first dynamic image, and decreases the brightness ofthe second dynamic image; and when the interaction instruction is aninteraction instruction for improving the brightness of the seconddynamic image, the brightness adjusting module 63 increases thebrightness of the second dynamic image, and decreases the brightness ofthe first dynamic image.

For example, the dynamic object displayed on the left and right displaywindows of the first three-dimensional display unit and the secondthree-dimensional display unit is a pendulum, a fly or the like object.Hereinafter, description is given using the pendulum as an example, andthe pendulum moves from the left to the right reciprocatively just infront of the user under test in a plane parallel to two eyes of theuser. A plurality of stationary reference objects, for example, uprightcolumns or the like for facilitating observation, are arrangedrespectively on two sides of the pendulum, a front side and a rear side.The dynamic object may apply different swing speed for the pendulum bythe wearable display device, or change different background environmentstherefor.

Firstly, the brightness of the first dynamic image and the brightness ofthe second dynamic image on the wearable display device are adjusted tobe consistent. If the user under test perceives that the moving objectmoves in an elliptical trajectory, the left eye and the right eye of theuser under test have asymmetric brightness perception capabilities.Then, based on the elliptical trajectory observed by the user undertest, an observation is made by means of top viewing about a centralaxis to determine whether the movement is clockwise or counterclockwise,and hence to modify a display brightness of each individual displaywindow, until the user under test perceives that the trajectories of thedynamic objects are in the same plane. In this case, a brightnessdifference between the left display window and the right display windowis a parameter for quantitatively assessing a binocular brightnesssensitivity of the user under test.

When the user under test observes that the movement trajectories of thedynamic objects are in the same plane, a stop instruction is issued bythe interaction end 40, the determining module 65 may calculate abrightness difference between the first dynamic image and the seconddynamic image, and determines a binocular brightness sensitivity of theuser under test based on the brightness difference, and locally storesthe determined binocular brightness sensitivity. Alternatively, data ofthe measured binocular brightness sensitivity may also be transmitted tothe cloud end 90 via a communication module, or transmitted to a mobileterminal for browsing.

The wearable display device 60 further includes a communication module67, wherein the communication module 67 uploads the measured binocularbrightness sensitivity to the cloud end 90, for example, a cloud server91, based on a code of the user under test. The data of the measuredbinocular brightness sensitivity may be transmitted to the cloud end 90via the communication module 67 for further analysis, or may betransmitted to the mobile terminal for browsing.

The wearable display device according to this embodiment may also be amobile terminal 20 for measuring a binocular brightness sensitivity.

The mobile terminal 20 is mounted with a virtual reality system, and afirst three-dimensional display unit and a second three-dimensionaldisplay unit are arranged in the virtual reality system. In themeantime, the mobile terminal 20 further includes a head-mountedbracket, wherein the head-mounted bracket includes a spacer layer. Themobile terminal 20 has a screen which is divided into a left displaywindow and a right display window. After the mobile terminal 20 ismounted on the head-mounted bracket, the user may wear the mobileterminal 20 on the head, and observe independently the left displaywindow and the right display window of the mobile terminal 20 under theeffect of the spacer layer.

To measure the binocular brightness sensitivity, the mobile terminal 20likewise includes a brightness adjusting module, an acquiring module anda determining module.

Functions and effects of the first three-dimensional display unit, thesecond three-dimensional display unit, the brightness adjusting module,the acquiring module and the determining module are the same as those ofthe above described wearable display device, which are thus notdescribed herein any further.

The mobile terminal further includes a connecting module. The connectingmodule is wirelessly connected to the interaction end. The interactionend is configured to collect an interaction instruction for the userunder test, and send the interaction instruction to the connectingmodule. When the interaction instruction is an interaction instructionfor improving the brightness of the first dynamic image, the brightnessadjusting module is further configured to improve the brightness of thefirst dynamic image, and decrease the brightness of the second dynamicimage; and when the interaction instruction is an interactioninstruction for improving the brightness of the second dynamic image,the brightness adjusting module is further configured to improve thebrightness of the second dynamic image, and decrease the brightness ofthe first dynamic image.

Embodiment 2

This embodiment relates to a binocular brightness sensitivitymeasurement method based on a wearable display device.

Referring to FIG. 3, from the perspective of measuring a binocularbrightness sensitivity, the method mainly includes the following steps:

step 101: loading a first test image and a second test image which has abrightness different from that of the first test image respectively fortwo eyes of a user under test;

step 102: adjusting the brightness of the first test image and/or thesecond test image until a predefined brightness sensitivity perceptiontest condition is reached;

step 103: acquiring a brightness difference between the first test imageand the second test image; and

step 104: determining a binocular brightness sensitivity of the userunder test based on the brightness difference.

A specific test process is introduced as follows:

When the user under test wears the virtual reality device 10 or theaugmented reality device 30 or the like hardware device, a correspondingdevice software system selects or makes two images each having adifferent brightness, i.e., the first test image and the second testimage, and then displays the first test image and the second test imageon display windows of the first three-dimensional display unit and thesecond three-dimensional display unit respectively.

Corresponding to the dynamic detection and the static detection, in thestatic detection, the first test image and the second test image arestatic images, and in the dynamic detection, the first test image andthe second test image are dynamic images.

Referring to FIG. 4, a flowchart of a binocular brightness sensitivitymeasurement method with respect to a static image according anembodiment of the present application.

In an embodiment illustrating the static detection, the first test imageis a first static image, and the second test image is a second staticimage. Image elements in the first static image or the second staticimage have the same brightness, whereas the brightness of the firststatic image is different from that of the second static image. Thebrightness perception test condition is that the user perceives that thefirst static image and the second static image have the same brightness.

The method includes the following steps:

step 201: displaying a first static image and a second static image in adisplay window in a three-dimensional space of the wearable displaydevice, wherein the first static image is the first test image, and thesecond static image is the second test image;

step 202; loading a first static image and a second static image whichhas a brightness different from that of the first static imagerespectively for two eyes of a user under test;

step 203: acquiring an interaction instruction issued by the user undertest, and adjusting the brightness of the first static image and thebrightness of the second static image based on different interactioninstructions;

step 204-1; when the interaction instruction is an interactioninstruction for improving the brightness of the first static image,increasing the brightness of the first static image, and decreasing thebrightness of the second static image;

step 204-2: when the interaction instruction is an interactioninstruction or improving the brightness of the second static image,increasing the brightness of the second static image, and decreasing thebrightness of the first static image;

step 205: adjusting the brightness of the first static image and thebrightness of the second static image, until the user perceives that thefirst static image and the second static image have the same brightness;

step 206: acquiring a brightness difference between the first staticimage and the second static image;

step 207: determining a binocular brightness sensitivity of the userunder test based on the brightness difference; and

step 208: storing a corresponding binocular brightness sensitivity to acloud server based on a code of the user under test.

Referring to FIG. 5, a flowchart of a binocular brightness sensitivitymeasurement method with respect to a dynamic image according to anembodiment of the present application.

In an embodiment illustrating the dynamic detection, the first testimage is a first dynamic image, and the second test image is a seconddynamic image; wherein dynamic objects in the first dynamic image andthe second dynamic image reciprocate in a plane parallel to two eyes ofthe user directly in front of the user under test, the dynamic objectsin the first dynamic image and the second dynamic image have the samepositions and movement trajectories, the dynamic object in the firstdynamic image has a brightness different from that of the dynamic objectin the second dynamic image, and the brightness perception testcondition is that the movement trajectories of the dynamic objectsobserved by the user are in the same plane.

The method includes the following steps:

step 301: displaying a first dynamic image and a second dynamic image ina display window in a three-dimensional space of the wearable displaydevice, wherein the first dynamic image is the first test image, and thesecond dynamic image is the second test image;

step 302: loading a first dynamic image and a second dynamic image whichhas a brightness different from that of the first dynamic imagerespectively for two eyes of a user under test;

step 303: acquiring an interaction instruction issued by the user undertest, and adjusting the brightness of the first dynamic image and thebrightness of the second dynamic image based on different interactioninstructions;

step 304-1: when the interaction instruction is an interactioninstruction for improving the brightness of the first dynamic image,increasing the brightness of the first dynamic image, and decreasing thebrightness of the second dynamic image;

step 304-2: when the interaction instruction is an interactioninstruction for improving the brightness of the second dynamic image,increasing the brightness of the second dynamic image, and decreasingthe brightness of the first dynamic image;

step 305: adjusting the brightness of the first dynamic image and thebrightness of the second dynamic image until the movement trajectoriesof the dynamic objects observed by the user are in the same plane;

step 306: acquiring a brightness difference between the first dynamicimage and the second dynamic image;

step 307: determining a binocular brightness sensitivity of the userunder test based on the brightness difference; and

step 308: storing a corresponding binocular brightness sensitivity to acloud server based on a code of the user under test.

In conclusion, in the binocular brightness sensitivity measurementmethod based on a wearable display device, the device and mobileterminal according to the embodiments of the present application, in athree-dimensional space of the wearable display device, a first testimage and a second test image which has a brightness that is differentfrom that of the first test image are loaded respectively for two eyesof a user under test, and images are loaded to independent display unitshaving no crosstalk, such that interference factors are reduced andmeasurement accuracy is improved. In addition, the user may convenientlyadjust the brightness of the first test image and the brightness of thesecond test image until a predefined brightness sensitivity perceptiontest condition is fulfilled, and therefore, the measurement is simpleand the brightness sensitivity of the user under test is correctlyreflected. In the binocular brightness sensitivity measurement methodbased on a wearable display device, the device and mobile terminalaccording to the embodiments of the present application, a pupillarydistance, a focal length and display content of the wearable displaydevice all may be adjusted, and the display content may be preciselycontrolled, for example, environmental illumination, placement distance,color, texture, movement trajectory and the like of the objects inexperiments. As compared with the traditional natural environment, inthe virtual environment, interference in the real environment may beadjusted and eliminated; and further a relative positional relationshipbetween the user under test and the test device may be preciselycontrolled, such that measurement errors due to position errors andenvironment interferences are prevented. The wearable display device maysufficiently isolates the optical path systems of the left eye and theright eye, such that no crosstalk is produced therebetween. Thisimproves measurement accuracy.

Embodiment 3

FIG. 8 is a schematic structural diagram illustrating hardware of anelectronic device 600 for performing the binocular brightnesssensitivity measurement method information according to an embodiment ofthe present application.

As illustrated in FIG. 8, the electronic device 600 includes at leastone processor 610, a memory 620 and a communication component 650. FIG.8 uses one processor 610 as an example. In an embodiment of a virtualreality wearable display device or an embodiment of an augmented realitywearable display device, the electronic device 600 may further include agraphics processing unit (GPU). The memory 620 stores instructionsexecutable by the at least one processor 610. The instructions, whenbeing executed by the at least one processor 610, may establish a datachannel via the communication component 650, and cause the at least oneprocessor 610 to perform the binocular brightness sensitivitymeasurement method.

The at least one processor 610, the memory 620 and the communicationcomponent 650 may be connected via a bus or in another manner, and FIG.8 uses the bus as an example.

The memory 620, as a non-volatile computer readable storage medium, maybe configured to store non-volatile software programs, and non-volatilecomputer-executable programs and modules, for example, the programinstructions/modules corresponding to the binocular brightnesssensitivity measurement methods according to the embodiments of thepresent application (for example, the first three-dimensional displayunit 61, the second three-dimensional display unit 62, the brightnessadjusting module 63, the acquiring module 64, the determining module 65and the connecting module 66 as illustrated in FIG. 2). The non-volatilesoftware programs, instructions and modules stored in the memory 620,when being run by the at least one processor 610, cause the processor610 to perform various function applications and data processing of awearable display device, that is, performing the binocular brightnesssensitivity measurement methods in the above method embodiments.

The memory 620 may include a program memory area and data memory area,wherein the program memory area may store operation systems andapplication programs needed by at least function; and the data memoryarea may store data created according to the usage of the wearabledisplay device. In addition, the memory 620 may include a high speedrandom access memory, or include a non-volatile memory, for example, atleast one disk storage device, a flash memory device, or anothernon-volatile solid storage device. In some embodiments, the memory 620optionally includes the memory remotely arranged relative to theprocessor 610, and such remote memory may be connected to the electronicdevice over the network. Examples of the above network include, but notlimited to, the Internet, Intranet, local area network, mobilecommunication network and a combination thereof.

One or more modules are stored in the memory 620, which, when beingexecuted by the at least one processor 610, perform the binocularbrightness sensitivity measurement method according to any of the abovemethod embodiments, for example, performing steps 101 to 104 in themethod as illustrated in FIG. 3, steps 201 to 208 in the method asillustrated in FIG. 4 and steps 301 to 308 in the method as illustratedin FIG. 5; and implementing the functions of the first three-dimensionaldisplay unit 61, the second three-dimensional display unit 62, thebrightness adjusting module 63, the acquiring module 64, the determiningmodule 65 and the connecting module 66 as illustrated in FIG. 2.

The product may perform the method according to the embodiments of thepresent application, has corresponding function modules for performingthe method, and achieves the corresponding beneficial effects. Fortechnical details that are not illustrated in detail in this embodiment,reference may be made to the description of the methods according to theembodiments of the present application.

An embodiment of the present application provides a non-volatilecomputer-readable storage medium. The computer-readable storage mediumstores computer-executable instructions, which, when being executed byat least one processor, cause the at least one processor to performsteps 101 to 104 in the method as illustrated in FIG. 3, steps 201 to208 in the method as illustrated in FIG. 4 and steps 301 to 308 in themethod as illustrated in FIG. 5; and implementing the functions of thefirst three-dimensional display unit 61, the second three-dimensionaldisplay unit 62, the brightness adjusting module 63, the acquiringmodule 64, the determining module 65 and the connecting module 66 asillustrated in FIG. 2.

The above described apparatus embodiments are merely for illustrationpurpose only. The units which are described as separate components maybe physically separated or may be not physically separated, and thecomponents which are illustrated as units may be or may not be physicalunits, that is, the components may be located in the same position ormay be distributed into a plurality of network units. A part or all ofthe modules may be selected according to the actual needs to achieve theobjectives of the technical solutions of the embodiments.

According to the above embodiments of the present application, a personskilled in the art may clearly understand that the embodiments of thepresent application may be implemented by means of hardware or by meansof software plus a necessary general hardware platform. Persons ofordinary skill in the art may understand that all or part of the stepsof the methods in the embodiments may be implemented by a programinstructing relevant hardware. The program may be stored in acomputer-readable storage medium and may be executed by at least oneprocessor. When the program runs, the steps of the methods in theembodiments are performed. The storage medium may be any medium capableof storing program codes, such as read-only memory (ROM), a randomaccess memory (RAM), a magnetic disk, or a compact disc-read only memory(CD-ROM).

Finally, it should be noted that the above embodiments are merely usedto illustrate the technical solutions of the present application ratherthan limiting the technical solutions of the present application. Underthe concept of the present application, the technical features of theabove embodiments or other different embodiments may be combined, thesteps therein may be performed in any sequence, and various variationsmay be derived in different aspects of the present application, whichare not detailed herein for brevity of description. Although the presentapplication is described in detail with reference to the aboveembodiments, persons of ordinary skill in the art should understand thatthey may still make modifications to the technical solutions describedin the above embodiments, or make equivalent replacements to some of thetechnical features; however, such modifications or replacements do notcause the essence of the corresponding technical solutions to departfrom the spirit and scope of the technical solutions of the embodimentsof the present application.

What is claimed is:
 1. A binocular brightness sensitivity measurementmethod based on a wearable display device, comprising: loading a firsttest image and a second test image which has a brightness different fromthat of the first test image respectively for two eyes of a user undertest; adjusting the brightness of the first test image and/or the secondtest image until a predefined brightness sensitivity perception testcondition is fulfilled; acquiring a brightness difference between thefirst test image and the second test image; and determining a binocularbrightness sensitivity of the user under test based on the brightnessdifference.
 2. The binocular brightness sensitivity measurement methodbased on a wearable display device according to claim 1, wherein thefirst test image is a first static image, and the second test image is asecond static image; wherein image elements in the first static image orthe second static image have the same brightness, the first static imagehas a brightness different from that of the second static image, and thebrightness perception test condition is that the user under testperceives that the first static image and the second static image havethe same brightness.
 3. The binocular brightness sensitivity measurementmethod based on a wearable display device according to claim 2, furthercomprising: acquiring an interaction instruction issued by the userunder test; wherein when the interaction instruction is an interactioninstruction for improving the brightness of the first static image, thebrightness of the first static image is increased, and the brightness ofthe second static image is decreased; and when the interactioninstruction is an interaction instruction for improving the brightnessof the second static image, the brightness of the second static image isincreased, and the brightness of the first static image is decreased. 4.The binocular brightness sensitivity measurement method based on awearable display device according to claim 1, wherein the first testimage is a first dynamic image, and the second test image is a seconddynamic image; wherein dynamic objects in the first dynamic image andthe second dynamic image reciprocate in a plane parallel to two eyes ofthe user under test directly in front of the user under test, thedynamic objects in the first dynamic image and the second dynamic imagehave the same positions and movement trajectories, the dynamic object inthe first dynamic image has a brightness different from that of thedynamic object in the second dynamic image, and the brightnessperception test condition is that the movement trajectories of thedynamic objects observed by the user under test are in the same plane.5. The binocular brightness sensitivity measurement method based on awearable display device according to claim 4, further comprising:acquiring an interaction instruction issued by the user under test;wherein when the interaction instruction is an interaction instructionfor improving the brightness of the first dynamic image, the brightnessof the first dynamic image is increased, and the brightness of thesecond dynamic image is decreased; and when the interaction instructionis an interaction instruction for improving the brightness of the seconddynamic image, the brightness of the second dynamic image is increased,and the brightness of the first dynamic image is decreased.
 6. Thebinocular brightness sensitivity measurement method based on a wearabledisplay device according to claim 1, wherein the corresponding binocularbrightness sensitivity is stored to a cloud server based on a code ofthe user under test.
 7. A wearable display device for measuring abinocular brightness sensitivity, comprising: a first three-dimensionaldisplay unit and a second three-dimensional display unit; wherein thewearable display device further comprises a brightness adjusting module,an acquiring module and a determining module; wherein with respect totwo eyes of a user under test, the first three-dimensional display unitis configured to load a first test image, and the secondthree-dimensional display unit is configured to load a second test imagewhich has a brightness different from that of the first test image; thebrightness adjusting module is configured to adjust the brightness ofthe first test image and/or the second test image until a predefinedbrightness sensitivity perception test condition is fulfilled; theacquiring module is configured to acquire a brightness differencebetween the first test image and the second test image; and thedetermining module is configured to determine a binocular brightnesssensitivity of the user under test based on the brightness difference.8. The wearable display device for measuring a binocular brightnesssensitivity according to claim 7, wherein the first test image is afirst static image, the second test image is a second static image;wherein image elements in the first static image or the second staticimage have the same brightness, the first static image has a brightnessdifferent from that of the second static image, and the brightnessperception test condition is that the user under test perceives that thefirst static image and the second static image have the same brightness.9. The wearable display device for measuring a binocular brightnesssensitivity according to claim 8, further comprising a connectingmodule, wherein the connecting module is wirelessly connected to aninteraction end, the interaction end being configured to collect aninteraction instruction from the user under test, and wirelessly sendthe interaction instruction to the connecting module; wherein when theinteraction instruction is an interaction instruction for improving thebrightness of the first static image, the brightness adjusting module isfurther configured to increase the brightness of the first static image,and decrease the brightness of the second static image; and when theinteraction instruction is an interaction instruction for improving thebrightness of the second static image, the brightness adjusting moduleis further configured to increase the brightness of the second staticimage, and decrease the brightness of the first static image.
 10. Thewearable display device for measuring a binocular brightness sensitivityaccording to claim 7, wherein the first test image is a first dynamicimage, and the second test image is a second dynamic image; whereindynamic objects in the first dynamic image and the second dynamic imagereciprocate in a plane parallel to two eyes of the user under testdirectly in front of the user under test, the dynamic objects in thefirst dynamic image and the second dynamic image have the same positionsand movement trajectories, the dynamic object in the first dynamic imagehas a brightness different from that of the dynamic object in the seconddynamic image, and the brightness perception test condition is that themovement trajectories of the dynamic objects observed by the user undertest are in the same plane.
 11. The wearable display device formeasuring a binocular brightness sensitivity according to claim 10,further comprising a connecting module, wherein the connecting module iswirelessly connected to an interaction end, the interaction end beingconfigured to collect an interaction instruction from the user undertest, and wirelessly send the interaction instruction to the connectingmodule; wherein when the interaction instruction is an interactioninstruction for improving the brightness of the first dynamic image, thebrightness adjusting module is further configured to increase thebrightness of the first dynamic image, and decrease the brightness ofthe second dynamic image; and when the interaction instruction is aninteraction instruction for improving the brightness of the seconddynamic image, the brightness adjusting module is further configured toincrease the brightness of the second dynamic image, and decrease thebrightness of the first dynamic image.
 12. The wearable display devicefor measuring a binocular brightness sensitivity according to claim 7,further comprising a communication module; wherein the communicationmodule is configured to upload the measured binocular brightnesssensitivity to a cloud server based on a code of the user under test.13. A mobile terminal for measuring a binocular brightness sensitivity,comprising: a head-mounted bracket, a first three-dimensional displayunit and a second three-dimensional display unit; wherein the wearabledisplay device further comprises a brightness adjusting module, anacquiring module and a determining module; wherein with respect to twoeyes of a user under test, the first three-dimensional display unit isconfigured to load a first test image, and the second three-dimensionaldisplay unit is configured to load a second test image which has abrightness different from that of the first test image; the brightnessadjusting module is configured to adjust the brightness of the firsttest image and/or the second test image until a predefined brightnesssensitivity perception test condition is fulfilled; the acquiring moduleis configured to acquire a brightness difference between the first testimage and the second test image; and the determining module isconfigured to determine a binocular brightness sensitivity of the userunder test based on the brightness difference.
 14. The mobile terminalfor measuring a binocular brightness sensitivity according to claim 13,wherein the first test image is a first static image, the second testimage is a second static image; wherein image elements in the firststatic image or the second static image have the same brightness, thefirst static image has a brightness different from that of the secondstatic image, and the brightness perception test condition is that theuser under test perceives that the first static image and the secondstatic image have the same brightness.
 15. The mobile terminal formeasuring a binocular brightness sensitivity according to claim 14,further comprising a connecting module, wherein the connecting module iswirelessly connected to an interaction end, the interaction end beingconfigured to collect an interaction instruction from the user undertest, and wirelessly send the interaction instruction to the connectingmodule; wherein when the interaction instruction is an interactioninstruction for improving the brightness of the first static image, thebrightness adjusting module is further configured to increase thebrightness of the first static image, and decrease the brightness of thesecond static image; and when the interaction instruction is aninteraction instruction for improving the brightness of the secondstatic image, the brightness adjusting module is further configured toincrease the brightness of the second static image, and decrease thebrightness of the first static image.
 16. The mobile terminal formeasuring a binocular brightness sensitivity according to claim 13,wherein the first test image is a first dynamic image, and the secondtest image is a second dynamic image; wherein dynamic objects in thefirst dynamic image and the second dynamic image reciprocate in a planeparallel to two eyes of the user under test directly in front of theuser under test, the dynamic objects in the first dynamic image and thesecond dynamic image have the same positions and movement trajectories,the dynamic object in the first dynamic image has a brightness differentfrom that of the dynamic object in the second dynamic image, and thebrightness perception test condition is that the movement trajectoriesof the dynamic objects observed by the user under test are in the sameplane.
 17. The mobile terminal for measuring a binocular brightnesssensitivity according to claim 16, further comprising a connectingmodule, wherein the connecting module is wirelessly connected to aninteraction end, the interaction end being configured to collect aninteraction instruction from the user under test, and wirelessly sendthe interaction instruction to the connecting module; wherein when theinteraction instruction is an interaction instruction for improving thebrightness of the first dynamic image, the brightness adjusting moduleis further configured to increase the brightness of the first dynamicimage, and decrease the brightness of the second dynamic image; and whenthe interaction instruction is an interaction instruction for improvingthe brightness of the second dynamic image, the brightness adjustingmodule is further configured to increase the brightness of the seconddynamic image, and decrease the brightness of the first dynamic image.18. The mobile terminal for measuring a binocular brightness sensitivityaccording to claim 13, further comprising a communication module;wherein the communication module is configured to upload the measuredbinocular brightness sensitivity to a cloud server based on a code ofthe user under test.